|Rank|NPC|Gold|Silver|Bronze|Total|
|---|---|---|---|---|---|
|1|China (CHN)|95|71|65|231|
|2|Russia (RUS)|36|38|28|102|
|3|Great Britain (GBR)*|34|43|43|120|
|4|Ukraine (UKR)|32|24|28|84|
|5|Australia (AUS)|32|23|30|85|
|6|United States (USA)|31|29|38|98|
|7|Brazil (BRA)|21|14|8|43|
|8|Germany (GER)|18|26|22|66|
|9|Poland (POL)|14|13|9|36|
|10|Netherlands (NED)|10|10|19|39|
|Total (75 NPCs)|Total (75 NPCs)|503|503|516|1522|

Question: how many silver medals did poland win?
Answer: 13